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Carbon Monoxide Hourly Averages

Carbon Monoxide (CO) is a colorless, odorless, very toxic gas produced by the incomplete combustion of carbon-containing fuels, most notably by gasoline powered engines, power plants, and wood fires. CO can cause harmful health effects by reducing oxygen delivery to the body's organs (like the heart and brain) and tissues. At extremely high levels, CO can cause death.

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Carbon Monoxide Hourly Averages for Wednesday, April 26, 2017.
measured in parts per million
Blue Ridge - all times are in EST
24 FEW 24 1 R Virginia DEQ
Piedmont - all times are in EST
19 FEW 19 1 R Virginia DEQ
37 FEW 37 1 R Virginia DEQ
Tidewater - all times are in EST
30 FEW 30 1 R Virginia DEQ
31 FEW 31 1 R Virginia DEQ
Northern - all times are in EST
11 FEW 11 1 R Virginia DEQ
39 FEW 39 1 R Virginia DEQ
Maximum values for the day are bold within the table. Minimum values are bold italic.
 R - Data from this instrument meets EPA quality assurance criteria for regulatory purposes.

PLEASE NOTE: This data has not been verified by the Virginia DEQ and may change. This is the most current data, but it is not official until it has been certified by our technical staff. Data is collected from Virginia DEQ ambient monitoring sites and may include data collected by other outside agencies. This data is updated hourly. All times shown are in local standard time unless otherwise indicated.